منابع مشابه
Oak - Bark Tannins
1. The colorimetric method for estimation of acetoacetate by reaction with diazotizedp-nitroaniline has been adapted for measurements of oxaloacetate in amounts of 0 003-0 03 Htmole. 2. The steady-state level of oxaloacetate in the livers of normal and fasted rats was found to be about 4 umoles/100 g. dry wt. of tissue. The level was essentially unchanged in starvation when the level of acetoac...
متن کاملOrigin of Oak - Bark Tannin
DRUGS AND UPTAKE OF 32p BY ERYTHROCYTES 533' 5. Sodium salicylate and sodium thiopentone depressed the 32p uptake of 2:3-diphosphoglycerate and adenosine triphosphate to a greater extent than they depressed the 32P exchange of inorganic phosphate and hexose monophosphate. These agents do not depress 32p uptake by inhibiting triose phosphate dehydrogenase, for neither drug had any effect on glyc...
متن کاملPhenolic Extractives in Southern Red Oak Bark
The bark of southern red oak (Quercus falcala Michx. var. falcala) is a rich source of quercitrin (quercetin3-rhamnoside). It contains only low concentrations of (+ )-catechin and no significant amounts of epicatechin or gallocatechin. The three major dimeric proanthocyanidins present are epicatechin(4f,>8)-catechin, catechin-(4a>8)-catechin and the 3-gallate ester of epicatechin-( 4~>8)-catech...
متن کاملPhosphite Injections and Bark Application of Phosphite + PentrabarkTM Control Sudden Oak Death in Coast Live Oak
In each of seven fully controlled experiments, potted California, U.S. coast live oak trees were artificially inoculated with Phytophthora ramorum, the agent of a tree disease commonly referred to as sudden oak death. Phosphites were applied to trees using a range of application approaches either as preventive or therapeutic treatments. Soil drenches and bark application of phosphites were inef...
متن کاملAntioxidant tannins from stem bark and fine root of Casuarina equisetifolia.
Structures of condensed tannins from the stem bark and fine root of Casuarina equisetifolia were identified using MALDI-TOF MS and HPLC analyses. The condensed tannins from stem bark and fine root consist predominantly of procyanidin combined with prodelphinidin and propelargonidin, and epicatechin is the main extension unit. The condensed tannins had different polymer chain lengths, varying fr...
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1958
ISSN: 0306-3283
DOI: 10.1042/bj0700034